* 【Optical Glass Material】ND Filter: Made of complete professional optical glass instead of optical resin, which reduces the light intake without affecting the overall color balance.
* 【NANOTEC】 Our optical engineers developed new Nano coating layer technology， Waterproof, scratch-resistant, anti-reflective green coating, effectively prevent from oil, fingerprint, scratch, protect valued lens.
* 【No "X" cross on images】 Rotating ring between ND8 and ND128 giving great versatility in changing light. Say goodbye to the "X" cross on images, K&F utilize cutting edge technology you're going to say goodbye to this common issue with wide angle lenses and variable ND filters.
* 【Professional Design】 Ultra slim rim design preventing wide angle vignetting. Extra tough aviation aluminum frame ensuring durability and jamming prevention.
* 【NOTE】 This Filter kit is compatible with all 82mm lenses. Please verify your camera's lens thread size(usually marked somewhere on the lens barrel or printed underneath the lens cap) before ordering.This number is always preceded by a "Ø" (diameter) symbol. For example: Ø67 = 67mm lens thread size.